On 10/01/2018 06:20, Peng Fan wrote:
> Use more general enum types for speed grade.
> Refine get_cpu_speed_grade_hz to support i.MX8M.
>
> Signed-off-by: Peng Fan <peng....@nxp.com>
> Cc: Stefano Babic <sba...@denx.de>
> Cc: Fabio Estevam <fabio.este...@nxp.com>
> ---
> arch/arm/mach-imx/cpu.c | 27 +++++++++++++++------------
> 1 file changed, 15 insertions(+), 12 deletions(-)
>
> diff --git a/arch/arm/mach-imx/cpu.c b/arch/arm/mach-imx/cpu.c
> index 52dbafb50c..fd6d08c533 100644
> --- a/arch/arm/mach-imx/cpu.c
> +++ b/arch/arm/mach-imx/cpu.c
> @@ -333,16 +333,18 @@ void set_chipselect_size(int const cs_size)
> }
> #endif
>
> -#if defined(CONFIG_MX7)
> +#if defined(CONFIG_MX7) || defined(CONFIG_MX8M)
> /*
> * OCOTP_TESTER3[9:8] (see Fusemap Description Table offset 0x440)
> * defines a 2-bit SPEED_GRADING
> */
> #define OCOTP_TESTER3_SPEED_SHIFT 8
> -#define OCOTP_TESTER3_SPEED_800MHZ 0
> -#define OCOTP_TESTER3_SPEED_500MHZ 1
> -#define OCOTP_TESTER3_SPEED_1GHZ 2
> -#define OCOTP_TESTER3_SPEED_1P2GHZ 3
> +enum cpu_speed {
> + OCOTP_TESTER3_SPEED_GRADE0,
> + OCOTP_TESTER3_SPEED_GRADE1,
> + OCOTP_TESTER3_SPEED_GRADE2,
> + OCOTP_TESTER3_SPEED_GRADE3,
> +};
>
> u32 get_cpu_speed_grade_hz(void)
> {
> @@ -357,15 +359,16 @@ u32 get_cpu_speed_grade_hz(void)
> val &= 0x3;
>
> switch(val) {
> - case OCOTP_TESTER3_SPEED_800MHZ:
> + case OCOTP_TESTER3_SPEED_GRADE0:
> return 800000000;
> - case OCOTP_TESTER3_SPEED_500MHZ:
> - return 500000000;
> - case OCOTP_TESTER3_SPEED_1GHZ:
> - return 1000000000;
> - case OCOTP_TESTER3_SPEED_1P2GHZ:
> - return 1200000000;
> + case OCOTP_TESTER3_SPEED_GRADE1:
> + return is_mx7() ? 500000000 : 1000000000;
> + case OCOTP_TESTER3_SPEED_GRADE2:
> + return is_mx7() ? 1000000000 : 1300000000;
> + case OCOTP_TESTER3_SPEED_GRADE3:
> + return is_mx7() ? 1200000000 : 1500000000;
> }
> +
> return 0;
> }
>
>
Reviewed-by: Stefano Babic <sba...@denx.de>
Best regards,
Stefano Babic
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